a firm has a bond that matures in

$8$

$$years$,$ pays a

$7$

$\%$

$$coupon semi

$-$

annually. The original loan amount was $

$1$

$$million$.$ The current YTM

$=$

$4$

$\%$

$.$

$$It has

$7$

$0$

$0$

$,$

$0$

$0$

$0$

$$shares of common stock, each trading at $

$4$

$.$

$$The beta of the firm

$=$

$0$

$.$

$9$

$,$

$$the market risk premium

$=$

$6$

$\%$

$,$

$$and the risk

$-$

free rate

$=$

$1$

$\%$

$.$

$$Assume a tax rate

$=$

$2$

$3$

$\%$

$,$

$$what is the firms WACC?